SoundSwitch

SoundSwitch allows you to easily switch between different playback devices currently connected to your machine with hotkeys.

 SoundSwitch is easy to configure;  all you have to do is right click on the system icon to open the settings.

 From here you can select your preferred hotkey and select/deselect devices so you can only use the right ones for switching.
 When you are satisfied, it runs silently in the background.  All selections made are saved so they are ready for the application to restart.